Multiplexing channel state information reports in multiple transmit-receive point (trp) scenarios

ABSTRACT

This disclosure provides systems, methods, apparatuses, and computer-readable media for multiplexing channel state information (CSI) reports in scenarios involving multiple transmit-receive points (TRPs). In one aspect, a user equipment (UE) may receive at least one configuration that identifies a resource for multiplexing CSI reports that have a potential to collide in a slot. The UE may receive the at least one configuration from either, or both, of a first TRP or a second TRP. The UE may transmit at least one of a first set of CSI reports to the first TRP or a second set of CSI reports to the second TRP, multiplexed in the resource, according to the at least one configuration.

CROSS-REFERENCE TO RELATED APPLICATION

This patent application claims priority to U.S. Provisional PatentApplication No. 62/915,566, filed on Oct. 15, 2019, entitled“MULTIPLEXING CHANNEL STATE INFORMATION REPORTS IN MULTIPLETRANSMIT-RECEIVE POINT (TRP) SCENARIOS,” and assigned to the assigneehereof. The disclosure of the prior application is considered part ofand is incorporated by reference into this patent application.

TECHNICAL FIELD

Aspects of the present disclosure relate generally to wirelesscommunication, and to techniques for multiplexing channel stateinformation reports in multiple transmit-receive point (TRP) scenarios.

DESCRIPTION OF THE RELATED TECHNOLOGY

Wireless communication systems are widely deployed to provide varioustelecommunication services such as telephony, video, data, messaging,and broadcasts. Typical wireless communication systems may employmultiple-access technologies capable of supporting communication withmultiple users by sharing available system resources (for example,bandwidth, transmit power, etc.). Examples of such multiple-accesstechnologies include code division multiple access (CDMA) systems, timedivision multiple access (TDMA) systems, frequency-division multipleaccess (FDMA) systems, orthogonal frequency-division multiple access(OFDMA) systems, single-carrier frequency-division multiple access(SC-FDMA) systems, time division synchronous code division multipleaccess (TD-SCDMA) systems, and Long Term Evolution (LTE).LTE/LTE-Advanced is a set of enhancements to the Universal MobileTelecommunications System (UMTS) mobile standard promulgated by theThird Generation Partnership Project (3GPP).

A wireless communication network may include a number of base stations(BSs) that can support communication for a number of user equipment(UEs). A user equipment (UE) may communicate with a base station (BS)via the downlink (DL) and uplink (UL). The DL (or forward link) refersto the communication link from the BS to the UE, and the UL (or reverselink) refers to the communication link from the UE to the BS. As will bedescribed in more detail herein, a BS may be referred to as a NodeB, anLTE evolved nodeB (eNB), a gNB, an access point (AP), a radio head, atransmit receive point (TRP), a New Radio (NR) BS, or a 5G NodeB, amongother examples.

The above multiple access technologies have been adopted in varioustelecommunication standards to provide a common protocol that enablesdifferent UEs to communicate on a municipal, national, regional, andeven global level. NR, which also may be referred to as 5G, is a set ofenhancements to the LTE mobile standard promulgated by the ThirdGeneration Partnership Project (3GPP). NR is designed to better supportmobile broadband Internet access by improving spectral efficiency,lowering costs, improving services, making use of new spectrum, andbetter integrating with other open standards using orthogonalfrequency-division multiplexing (OFDM) with a cyclic prefix (CP)(CP-OFDM) on the DL, using CP-OFDM or SC-FDM (for example, also known asdiscrete Fourier transform spread OFDM (DFT-s-OFDM)) on the UL (or acombination thereof), as well as supporting beamforming, multiple-inputmultiple-output (MIMO) antenna technology, and carrier aggregation.

SUMMARY

The systems, methods, and devices of this disclosure each have severalinnovative aspects, no single one of which is solely responsible for thedesirable attributes disclosed herein.

One innovative aspect of the subject matter described in this disclosurecan be implemented in a method of wireless communication performed by anapparatus of a user equipment (UE). The method may include receiving atleast one configuration that identifies a resource for multiplexingchannel state information (CSI) reports with a potential to collide in aslot; determining that multiple CSI reports of a first set of CSIreports that are to be transmitted to a first transmit-receive point(TRP), or a second set of CSI reports that are to be transmitted to asecond TRP, have the potential to collide in the slot; and transmittingat least one of the first set of CSI reports to the first TRP or thesecond set of CSI reports to the second TRP according to the at leastone configuration, where the first set of CSI reports or the second setof CSI reports are multiplexed in the resource.

In some implementations, the at least one configuration identifies aplurality of resources, and the method may further include selecting theresource for multiplexing CSI reports based on a payload size of thefirst set of CSI reports or the second set of CSI reports.

In some implementations, determining that multiple CSI reports have thepotential to collide in the slot includes determining that a first CSIreport and a second CSI report are scheduled in overlapping resources inthe slot.

In some implementations, the method may further include determining afirst association between the first set of CSI reports and the first TRPand a second association between the second set of CSI reports and thesecond TRP.

In some implementations, the first association and the secondassociation are determined based on at least one of: a first otherconfiguration identifying a first resource for transmitting CSI reportsas being associated with the first TRP and a second other configurationidentifying a second resource for transmitting CSI reports as beingassociated with the second TRP; or another configuration that identifiesa first CSI reporting configuration as being associated with the firstTRP and a second CSI reporting configuration as being associated withthe second TRP.

In some implementations, the method may further include identifying,prior to transmitting the at least one of the first set of CSI reportsor the second set of CSI reports, a non-ideal backhaul condition betweenthe first TRP and the second TRP.

In some implementations, the non-ideal backhaul condition is identifiedbased on at least one of: another configuration that indicates thenon-ideal backhaul condition, another configuration that identifiesdifferent hybrid automatic repeat request (HARQ) acknowledgment reportsfor the first TRP and the second TRP; a first other configurationidentifying a first resource for transmitting CSI reports as beingassociated with the first TRP and a second other configurationidentifying a second resource for transmitting CSI reports as beingassociated with the second TRP; or another configuration that identifiesa first CSI reporting configuration as being associated with the firstTRP and a second CSI reporting configuration as being associated withthe second TRP.

In some implementations, the first set of CSI reports and the second setof CSI reports are transmitted in separate resources.

In some implementations, the second set of CSI reports is a subset ofnon-colliding CSI reports of a set of CSI reports having a plurality ofCSI reports that have the potential to collide in the slot.

In some implementations, the second set of CSI reports includes one ormore CSI reports that are selected according to one or moreprioritization criteria from a set of CSI reports having a plurality ofCSI reports that have the potential to collide in the slot.

In some implementations, the separate resources do not overlap.

In some implementations, receiving the at least one configurationincludes receiving a first configuration that identifies a firstresource for multiplexing CSI reports, and receiving a secondconfiguration that identifies a second resource for multiplexing CSIreports, and the first set of CSI reports are transmitted, multiplexedin the first resource, to the first TRP, and the second set of CSIreports are transmitted, multiplexed in the second resource, to thesecond TRP.

In some implementations, the second configuration further identifies athird resource for multiplexing CSI reports, and the method may furtherinclude selecting the second resource for transmitting the second set ofCSI reports based on a determination that the third resource overlapswith the first resource in the slot, and the second resource does notoverlap with the first resource in the slot.

In some implementations, the at least one configuration is a singleconfiguration that identifies a first resource for multiplexing CSIreports that are to be transmitted to the first TRP and a secondresource for multiplexing CSI reports that are to be transmitted to thesecond TRP, and the first set of CSI reports are transmitted,multiplexed in the first resource, to the first TRP, and the second setof CSI reports are transmitted, multiplexed in the second resource, tothe second TRP.

Another innovative aspect of the subject matter described in thisdisclosure can be implemented in an apparatus of a UE for wirelesscommunication. The apparatus may include a first interface configured toobtain at least one configuration that identifies a resource formultiplexing CSI reports with a potential to collide in a slot. Theapparatus may include a processing system configured to determine thatmultiple CSI reports of a first set of CSI reports that are to betransmitted to a first TRP, or a second set of CSI reports that are tobe transmitted to a second TRP, have the potential to collide in theslot. The apparatus may include a second interface configured to outputat least one of the first set of CSI reports to the first TRP or thesecond set of CSI reports to the second TRP according to the at leastone configuration, where the first set of CSI reports or the second setof CSI reports are multiplexed in the resource.

In some implementations, the at least one configuration identifies aplurality of resources, and the processing system is further configuredto select the resource for multiplexing CSI reports based on a payloadsize of the first set of CSI reports or the second set of CSI reports.

In some implementations, the processing system, when determining thatmultiple CSI reports have the potential to collide in the slot, isconfigured to determine that a first CSI report and a second CSI reportare scheduled in overlapping resources in the slot.

In some implementations, the processing system is further configured todetermine a first association between the first set of CSI reports andthe first TRP and a second association between the second set of CSIreports and the second TRP.

In some implementations, the first association and the secondassociation are determined based on at least one of: a first otherconfiguration identifying a first resource for transmitting CSI reportsas being associated with the first TRP and a second other configurationidentifying a second resource for transmitting CSI reports as beingassociated with the second TRP; or another configuration that identifiesa first CSI reporting configuration as being associated with the firstTRP and a second CSI reporting configuration as being associated withthe second TRP.

In some implementations, the processing system is further configured toidentify, prior to outputting the at least one of the first set of CSIreports or the second set of CSI reports, a non-ideal backhaul conditionbetween the first TRP and the second TRP.

In some implementations, the non-ideal backhaul condition is identifiedbased on at least one of: another configuration that indicates thenon-ideal backhaul condition; another configuration that identifiesdifferent HARQ acknowledgment reports for the first TRP and the secondTRP; a first other configuration identifying a first resource fortransmitting CSI reports as being associated with the first TRP and asecond other configuration identifying a second resource fortransmitting CSI reports as being associated with the second TRP; oranother configuration that identifies a first CSI reportingconfiguration as being associated with the first TRP and a second CSIreporting configuration as being associated with the second TRP.

In some implementations, the first set of CSI reports and the second setof CSI reports are outputted in separate resources.

In some implementations, the second set of CSI reports is a subset ofnon-colliding CSI reports of a set of CSI reports having a plurality ofCSI reports that have the potential to collide in the slot.

In some implementations, the second set of CSI reports includes one ormore CSI reports that are selected according to one or moreprioritization criteria from a set of CSI reports having a plurality ofCSI reports that have the potential to collide in the slot.

In some implementations, the separate resources do not overlap.

In some implementations, the processing system, when obtaining the atleast one configuration, is configured to obtain a first configurationthat identifies a first resource for multiplexing CSI reports, andobtain a second configuration that identifies a second resource formultiplexing CSI reports, and the first set of CSI reports areoutputted, multiplexed in the first resource, for the first TRP, and thesecond set of CSI reports are outputted, multiplexed in the secondresource, for the second TRP.

In some implementations, the second configuration further identifies athird resource for multiplexing CSI reports, and the processing systemis further configured to select the second resource for transmitting thesecond set of CSI reports based on a determination that the thirdresource overlaps with the first resource in the slot, and the secondresource does not overlap with the first resource in the slot.

In some implementations, the at least one configuration is a singleconfiguration that identifies a first resource for multiplexing CSIreports that are to be transmitted to the first TRP and a secondresource for multiplexing CSI reports that are to be transmitted to thesecond TRP, and the first set of CSI reports are outputted, multiplexedin the first resource, for the first TRP, and the second set of CSIreports are outputted, multiplexed in the second resource, for thesecond TRP.

Another innovative aspect of the subject matter described in thisdisclosure can be implemented in a non-transitory computer-readablemedium. The non-transitory computer-readable medium may store one ormore instructions for wireless communication. The one or moreinstructions, when executed by one or more processors of a UE, may causethe one or more processors to receive at least one configuration thatidentifies a resource for multiplexing CSI reports with a potential tocollide in a slot; determine that multiple CSI reports of a first set ofCSI reports that are to be transmitted to a first TRP, or a second setof CSI reports that are to be transmitted to a second TRP, have thepotential to collide in the slot; and transmit at least one of the firstset of CSI reports to the first TRP or the second set of CSI reports tothe second TRP according to the at least one configuration, where thefirst set of CSI reports or the second set of CSI reports aremultiplexed in the resource.

In some implementations, the at least one configuration identifies aplurality of resources, and the one or more instructions further causethe UE to select the resource for multiplexing CSI reports based on apayload size of the first set of CSI reports or the second set of CSIreports.

In some implementations, the one or more instructions, that cause the UEto determine that multiple CSI reports have the potential to collide inthe slot, cause the UE to determine that a first CSI report and a secondCSI report are scheduled in overlapping resources in the slot.

In some implementations, the one or more instructions further cause theUE to determine a first association between the first set of CSI reportsand the first TRP and a second association between the second set of CSIreports and the second TRP.

In some implementations, the first association and the secondassociation are determined based on at least one of: a first otherconfiguration identifying a first resource for transmitting CSI reportsas being associated with the first TRP and a second other configurationidentifying a second resource for transmitting CSI reports as beingassociated with the second TRP; or another configuration that identifiesa first CSI reporting configuration as being associated with the firstTRP and a second CSI reporting configuration as being associated withthe second TRP.

In some implementations, the one or more instructions further cause theUE to identify, prior to transmitting the at least one of the first setof CSI reports or the second set of CSI reports, a non-ideal backhaulcondition between the first TRP and the second TRP.

In some implementations, the non-ideal backhaul condition is identifiedbased on at least one of: another configuration that indicates thenon-ideal backhaul condition; another configuration that identifiesdifferent HARQ acknowledgment reports for the first TRP and the secondTRP; a first other configuration identifying a first resource fortransmitting CSI reports as being associated with the first TRP and asecond other configuration identifying a second resource fortransmitting CSI reports as being associated with the second TRP; oranother configuration that identifies a first CSI reportingconfiguration as being associated with the first TRP and a second CSIreporting configuration as being associated with the second TRP.

In some implementations, the first set of CSI reports and the second setof CSI reports are transmitted in separate resources.

In some implementations, the second set of CSI reports is a subset ofnon-colliding CSI reports of a set of CSI reports having a plurality ofCSI reports that have the potential to collide in the slot.

In some implementations, the second set of CSI reports includes one ormore CSI reports that are selected according to one or moreprioritization criteria from a set of CSI reports having a plurality ofCSI reports that have the potential to collide in the slot.

In some implementations, the separate resources do not overlap.

In some implementations, the one or more instructions, that cause the UEto receive the at least one configuration, cause the UE to receive afirst configuration that identifies a first resource for multiplexingCSI reports, and receive a second configuration that identifies a secondresource for multiplexing CSI reports, and the first set of CSI reportsare transmitted, multiplexed in the first resource, to the first TRP,and the second set of CSI reports are transmitted, multiplexed in thesecond resource, to the second TRP.

In some implementations, the second configuration further identifies athird resource for multiplexing CSI reports, and the one or moreinstructions further cause the UE to select the second resource fortransmitting the second set of CSI reports based on a determination thatthe third resource overlaps with the first resource in the slot, and thesecond resource does not overlap with the first resource in the slot.

In some implementations, the at least one configuration is a singleconfiguration that identifies a first resource for multiplexing CSIreports that are to be transmitted to the first TRP and a secondresource for multiplexing CSI reports that are to be transmitted to thesecond TRP, and the first set of CSI reports are transmitted,multiplexed in the first resource, to the first TRP, and the second setof CSI reports are transmitted, multiplexed in the second resource, tothe second TRP.

Another innovative aspect of the subject matter described in thisdisclosure can be implemented in an apparatus for wirelesscommunication. The apparatus may include means for receiving at leastone configuration that identifies a resource for multiplexing CSIreports with a potential to collide in a slot; means for determiningthat multiple CSI reports of a first set of CSI reports that are to betransmitted to a first TRP, or a second set of CSI reports that are tobe transmitted to a second TRP, have the potential to collide in theslot; and means for transmitting at least one of the first set of CSIreports to the first TRP or the second set of CSI reports to the secondTRP according to the at least one configuration, where the first set ofCSI reports or the second set of CSI reports are multiplexed in theresource.

In some implementations, the at least one configuration identifies aplurality of resources, and the apparatus may further include means forselecting the resource for multiplexing CSI reports based on a payloadsize of the first set of CSI reports or the second set of CSI reports.

In some implementations, the means for determining that multiple CSIreports have the potential to collide in the slot includes means fordetermining that a first CSI report and a second CSI report arescheduled in overlapping resources in the slot.

In some implementations, the apparatus may further include means fordetermining a first association between the first set of CSI reports andthe first TRP and a second association between the second set of CSIreports and the second TRP.

In some implementations, the first association and the secondassociation are determined based on at least one of: a first otherconfiguration identifying a first resource for transmitting CSI reportsas being associated with the first TRP and a second other configurationidentifying a second resource for transmitting CSI reports as beingassociated with the second TRP; or another configuration that identifiesa first CSI reporting configuration as being associated with the firstTRP and a second CSI reporting configuration as being associated withthe second TRP.

In some implementations, the apparatus may further include means foridentifying, prior to transmitting the at least one of the first set ofCSI reports or the second set of CSI reports, a non-ideal backhaulcondition between the first TRP and the second TRP.

In some implementations, the non-ideal backhaul condition is identifiedbased on at least one of: another configuration that indicates thenon-ideal backhaul condition; another configuration that identifiesdifferent HARQ acknowledgment reports for the first TRP and the secondTRP; a first other configuration identifying a first resource fortransmitting CSI reports as being associated with the first TRP and asecond other configuration identifying a second resource fortransmitting CSI reports as being associated with the second TRP; oranother configuration that identifies a first CSI reportingconfiguration as being associated with the first TRP and a second CSIreporting configuration as being associated with the second TRP.

In some implementations, the first set of CSI reports and the second setof CSI reports are transmitted in separate resources.

In some implementations, the second set of CSI reports is a subset ofnon-colliding CSI reports of a set of CSI reports having a plurality ofCSI reports that have the potential to collide in the slot.

In some implementations, the second set of CSI reports includes one ormore CSI reports that are selected according to one or moreprioritization criteria from a set of CSI reports having a plurality ofCSI reports that have the potential to collide in the slot.

In some implementations, the separate resources do not overlap.

In some implementations, the means for receiving the at least oneconfiguration includes means for receiving a first configuration thatidentifies a first resource for multiplexing CSI reports, and receivinga second configuration that identifies a second resource formultiplexing CSI reports, and the first set of CSI reports aretransmitted, multiplexed in the first resource, to the first TRP, andthe second set of CSI reports are transmitted, multiplexed in the secondresource, to the second TRP.

In some implementations, the second configuration further identifies athird resource for multiplexing CSI reports, and the apparatus mayfurther include means for selecting the second resource for transmittingthe second set of CSI reports based on a determination that the thirdresource overlaps with the first resource in the slot, and the secondresource does not overlap with the first resource in the slot.

In some implementations, the at least one configuration is a singleconfiguration that identifies a first resource for multiplexing CSIreports that are to be transmitted to the first TRP and a secondresource for multiplexing CSI reports that are to be transmitted to thesecond TRP, and the first set of CSI reports are transmitted,multiplexed in the first resource, to the first TRP, and the second setof CSI reports are transmitted, multiplexed in the second resource, tothe second TRP.

Aspects generally include a method, apparatus, system, computer programproduct, non-transitory computer-readable medium, user equipment, basestation, wireless communication device, or processing system assubstantially described herein with reference to and as illustrated bythe accompanying drawings.

Details of one or more implementations of the subject matter describedin this disclosure are set forth in the accompanying drawings and thedescription below. Other features, aspects, and advantages will becomeapparent from the description, the drawings and the claims. Note thatthe relative dimensions of the following figures may not be drawn toscale.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a block diagram conceptually illustrating an example of awireless network.

FIG. 2 is a block diagram conceptually illustrating an example of a basestation (BS) in communication with a user equipment (UE) in a wirelessnetwork.

FIG. 3 is a block diagram conceptually illustrating an example of aframe structure in a wireless network.

FIG. 4 is a block diagram conceptually illustrating an example slotformat with a normal cyclic prefix.

FIG. 5 illustrates an example logical architecture of a distributedradio access network (RAN).

FIG. 6 illustrates an example physical architecture of a distributedRAN.

FIG. 7 is a diagram illustrating an example of multiplexing channelstate information reports in multiple transmit-receive point (TRP)scenarios.

FIG. 8 is a diagram illustrating an example process performed, forexample, by a UE.

Like reference numbers and designations in the various drawings indicatelike elements.

DETAILED DESCRIPTION

The following description is directed to certain implementations for thepurposes of describing the innovative aspects of this disclosure.However, a person having ordinary skill in the art will readilyrecognize that the teachings herein can be applied in a multitude ofdifferent ways. Some of the examples in this disclosure are based onwireless and wired local area network (LAN) communication according tothe Institute of Electrical and Electronics Engineers (IEEE) 802.11wireless standards, the IEEE 802.3 Ethernet standards, and the IEEE 1901Powerline communication (PLC) standards. However, the describedimplementations may be implemented in any device, system or network thatis capable of transmitting and receiving radio frequency signalsaccording to any of the wireless communication standards, including anyof the IEEE 802.11 standards, the Bluetooth® standard, code divisionmultiple access (CDMA), frequency division multiple access (FDMA), timedivision multiple access (TDMA), Global System for Mobile communications(GSM), GSM/General Packet Radio Service (GPRS), Enhanced Data GSMEnvironment (EDGE), Terrestrial Trunked Radio (TETRA), Wideband-CDMA(W-CDMA), Evolution Data Optimized (EV-DO), 1×EV-DO, EV-DO Rev A, EV-DORev B, High Speed Packet Access (HSPA), High Speed Downlink PacketAccess (HSDPA), High Speed Uplink Packet Access (HSUPA), Evolved HighSpeed Packet Access (HSPA+), Long Term Evolution (LTE), AMPS, or otherknown signals that are used to communicate within a wireless, cellularor internet of things (IOT) network, such as a system utilizing 3G, 4Gor 5G, or further implementations thereof, technology.

In some wireless telecommunication systems, a user equipment (UE) mayreceive multiple downlink control information (DCI) communications frommultiple transmit-receive points (TRPs), for example, to scheduledownlink transmissions from the multiple TRPs to the UE. In such cases,the UE may monitor respective control resource sets (CORESETs) for themultiple DCI, where each CORESET is associated with a particular TRP.Moreover, in such cases, the UE may provide respective uplinktransmissions to the multiple TRPs.

For example, the UE may transmit respective channel state information(CSI) reports to the multiple TRPs in one or more physical uplinkcontrol channels (PUCCHs). Sometimes, the UE may be scheduled totransmit multiple CSI reports to a TRP in overlapping resources, therebyresulting in a collision of the multiple CSI reports. In some wirelesstelecommunication systems, the UE may multiplex the multiple collidingCSI reports in a resource (such as a PUCCH resource) that is allocatedto the UE in a configuration (such as in a multi-CSI-PUCCH-ResourceListfield of a PUCCH configuration).

However, multiplexing CSI reports intended for multiple TRPs in theresource may prevent a TRP from identifying or decoding a CSI reportthat is intended for the TRP. For example, when the backhaul betweenTRPs is non-ideal (such as backhaul with a latency that fails to satisfya threshold or that does not permit joint scheduling), a TRP may lackinformation on a scheduling decision of another TRP, and therefore theTRP may be unable to identify a CSI report that is intended for the TRPfrom a plurality of multiplexed CSI reports.

Some techniques and apparatuses described herein provide formultiplexing CSI reports in multiple TRP scenarios. For example, sometechniques and apparatuses described herein provide for a UE to receiveat least one configuration that identifies one or more resources (suchas in a multi-CSI-PUCCH-ResourceList field of a PUCCH configuration) formultiplexing CSI reports with a potential to collide in a slot (such asCSI reports scheduled on overlapping PUCCH resources in a slot).

In some aspects, the UE may receive such a configuration from a firstTRP and may not receive such a configuration from a second TRP.Accordingly, the UE may transmit CSI reports to the first TRPmultiplexed in a resource identified in the configuration, and maytransmit CSI reports to the second TRP which is not multiplexed in aresource (such as in respective resources originally allocated for suchCSI reports in CSI reporting configurations). The UE may select, fortransmission to the second TRP, one or more CSI reports that arescheduled in non-overlapping resources, for example, according to one ormore prioritization criteria.

In some aspects, the UE may receive a first configuration from the firstTRP that identifies one or more first resources for multiplexing CSIreports intended for the first TRP, and may receive a secondconfiguration from the second TRP that identifies one or more secondresources for multiplexing CSI reports intended for the second TRP.Alternatively, the UE may receive a single configuration, from either ofthe first TRP or the second TRP, that identifies one or more firstresources for multiplexing CSI reports intended for the first TRP andone or more second resources for multiplexing CSI reports intended forthe second TRP. In either scenario, the UE may transmit CSI reports tothe first TRP multiplexed in a first resource of the one or more firstresources, and may transmit CSI reports to the second TRP multiplexed ina second resource of the one or more second resources. In such cases,the UE may select the first resource and the second resource based on apayload size of the CSI reports or based on a determination that thefirst resource and the second resource are non-overlapping.

Particular implementations of the subject matter described in thisdisclosure can be implemented to realize one or more of the followingpotential advantages. The UE may multiplex sets of CSI reports that arerespectively intended for multiple TRPs in separate resources. Thisenables identification, differentiation, and decoding of a set of CSIreports by a TRP, which may otherwise not be enabled when sets of CSIreports that are respectively intended for multiple TRPs are multiplexedin the same resource. Moreover, the UE may transmit a multiplexed set ofCSI reports to a TRP using transmissions parameters (such as, a beam ora transmit power, among other examples) that are particular to the TRP,thereby potentially improving a performance and a reliability of thetransmission. Some implementations described herein provide formultiplexing of sets of CSI reports, respectively intended for multipleTRPs, in non-ideal backhaul conditions. In this case, a TRP may receiveCSI reports with reduced latency, thereby improving a relevance of theCSI for determining current channel conditions. In contrast, when setsof CSI reports that are respectively intended for multiple TRPs aremultiplexed in the same resource, a first TRP may decode CSI for asecond TRP and transmit the CSI to the second TRP, which may increaselatency in non-ideal backhaul conditions. Moreover, by multiplexing setsof CSI reports, collisions between CSI reports may be avoided withoutdropping one or more CSI reports, thereby improving a reliability and arobustness of CSI reporting.

FIG. 1 is a block diagram conceptually illustrating an example of awireless network 100. The wireless network 100 may be an LTE network orsome other wireless network, such as a 5G or NR network. Wirelessnetwork 100 may include a number of BSs 110 (shown as BS 110 a, BS 110b, BS 110 c, and BS 110 d) and other network entities. A BS is an entitythat communicates with user equipment (UEs) and also may be referred toas a base station, a NR BS, a Node B, a gNB, a 5G node B (NB), an accesspoint, or a transmit receive point (TRP), among other examples. Each BSmay provide communication coverage for a particular geographic area. In3GPP, the term “cell” can refer to a coverage area of a BS, a BSsubsystem serving this coverage area, or a combination thereof,depending on the context in which the term is used.

A BS may provide communication coverage for a macro cell, a pico cell, afemto cell, another type of cell, or a combination thereof. A macro cellmay cover a relatively large geographic area (for example, severalkilometers in radius) and may allow unrestricted access by UEs withservice subscription. A pico cell may cover a relatively smallgeographic area and may allow unrestricted access by UEs with servicesubscription. A femto cell may cover a relatively small geographic area(for example, a home) and may allow restricted access by UEs havingassociation with the femto cell (for example, UEs in a closed subscribergroup (CSG)). ABS for a macro cell may be referred to as a macro BS. ABS for a pico cell may be referred to as a pico BS. A BS for a femtocell may be referred to as a femto BS or a home BS. In the example shownin FIG. 1, a BS 110 a may be a macro BS for a macro cell 102 a, a BS 110b may be a pico BS for a pico cell 102 b, and a BS 110 c may be a femtoBS for a femto cell 102 c. A BS may support one or multiple (forexample, three) cells. The terms “eNB”, “base station”, “NR BS”, “gNB”,“TRP”, “AP”, “node B”, “5G NB”, and “cell” may be used interchangeablyherein.

In some examples, a cell may not necessarily be stationary, and thegeographic area of the cell may move according to the location of amobile BS. In some examples, the BSs may be interconnected to oneanother as well as to one or more other BSs or network nodes (not shown)in the wireless network 100 through various types of backhaulinterfaces, such as a direct physical connection, a virtual network, ora combination thereof using any suitable transport network.

Wireless network 100 also may include relay stations. A relay station isan entity that can receive a transmission of data from an upstreamstation (for example, a BS or a UE) and send a transmission of the datato a downstream station (for example, a UE or a BS). A relay stationalso may be a UE that can relay transmissions for other UEs. In theexample shown in FIG. 1, a relay BS 110 d may communicate with macro BS110 a and a UE 120 d in order to facilitate communication between BS 110a and UE 120 d. A relay BS also may be referred to as a relay station, arelay base station, a relay, etc.

Wireless network 100 may be a heterogeneous network that includes BSs ofdifferent types, for example, macro BSs, pico BSs, femto BSs, relay BSs,etc. These different types of BSs may have different transmit powerlevels, different coverage areas, and different impacts on interferencein wireless network 100. For example, macro BSs may have a high transmitpower level (for example, 5 to 40 watts) whereas pico BSs, femto BSs,and relay BSs may have lower transmit power levels (for example, 0.1 to2 watts).

A network controller 130 may couple to a set of BSs and may providecoordination and control for these BSs. Network controller 130 maycommunicate with the BSs via a backhaul. The BSs also may communicatewith one another, for example, directly or indirectly via a wireless orwireline backhaul.

UEs 120 (for example, 120 a, 120 b, 120 c) may be dispersed throughoutwireless network 100, and each UE may be stationary or mobile. A UE alsomay be referred to as an access terminal, a terminal, a mobile station,a subscriber unit, a station, etc. A UE may be a cellular phone (forexample, a smart phone), a personal digital assistant (PDA), a wirelessmodem, a wireless communication device, a handheld device, a laptopcomputer, a cordless phone, a wireless local loop (WLL) station, atablet, a camera, a gaming device, a netbook, a smartbook, an ultrabook,a medical device or equipment, biometric sensors/devices, wearabledevices (smart watches, smart clothing, smart glasses, smart wristbands, smart jewelry (for example, smart ring, smart bracelet)), anentertainment device (for example, a music or video device, or asatellite radio), a vehicular component or sensor, smart meters/sensors,industrial manufacturing equipment, a global positioning system device,or any other suitable device that is configured to communicate via awireless or wired medium.

Some UEs may be considered machine-type communication (MTC) or evolvedor enhanced machine-type communication (eMTC) UEs. MTC and eMTC UEsinclude, for example, robots, drones, remote devices, sensors, meters,monitors, location tags, etc., that may communicate with a base station,another device (for example, remote device), or some other entity. Awireless node may provide, for example, connectivity for or to a network(for example, a wide area network such as Internet or a cellularnetwork) via a wired or wireless communication link. Some UEs may beconsidered Internet-of-Things (IoT) devices or may be implemented asNB-IoT (narrowband internet of things) devices. Some UEs may beconsidered a Customer Premises Equipment (CPE). UE 120 may be includedinside a housing that houses components of UE 120, such as processorcomponents, memory components, similar components, or a combinationthereof.

In general, any number of wireless networks may be deployed in a givengeographic area. Each wireless network may support a particular RAT andmay operate on one or more frequencies. A RAT also may be referred to asa radio technology, an air interface, etc. A frequency also may bereferred to as a carrier, a frequency channel, etc. Each frequency maysupport a single RAT in a given geographic area in order to avoidinterference between wireless networks of different RATs. In some cases,NR or 5G RAT networks may be deployed.

In some examples, access to the air interface may be scheduled, where ascheduling entity (for example, a base station) allocates resources forcommunication among some or all devices and equipment within thescheduling entity's service area or cell. Within the present disclosure,as discussed further below, the scheduling entity may be responsible forscheduling, assigning, reconfiguring, and releasing resources for one ormore subordinate entities. That is, for scheduled communication,subordinate entities utilize resources allocated by the schedulingentity.

Base stations are not the only entities that may function as ascheduling entity. That is, in some examples, a UE may function as ascheduling entity, scheduling resources for one or more subordinateentities (for example, one or more other UEs). In this example, the UEis functioning as a scheduling entity, and other UEs utilize resourcesscheduled by the UE for wireless communication. A UE may function as ascheduling entity in a peer-to-peer (P2P) network, in a mesh network, oranother type of network. In a mesh network example, UEs may optionallycommunicate directly with one another in addition to communicating withthe scheduling entity.

Thus, in a wireless communication network with a scheduled access totime-frequency resources and having a cellular configuration, a P2Pconfiguration, and a mesh configuration, a scheduling entity and one ormore subordinate entities may communicate utilizing the scheduledresources.

In some aspects, two or more UEs 120 (for example, shown as UE 120 a andUE 120 e) may communicate directly using one or more sidelink channels(for example, without using a base station 110 as an intermediary tocommunicate with one another). For example, the UEs 120 may communicateusing peer-to-peer (P2P) communications, device-to-device (D2D)communications, a vehicle-to-everything (V2X) protocol (which mayinclude a vehicle-to-vehicle (V2V) protocol, a vehicle-to-infrastructure(V21) protocol, or similar protocol), a mesh network, or similarnetworks, or combinations thereof. In this case, the UE 120 may performscheduling operations, resource selection operations, as well as otheroperations described elsewhere herein as being performed by the basestation 110.

FIG. 2 is a block diagram conceptually illustrating an example 200 of abase station (BS) 110 in communication with a user equipment (UE) 120.In some aspects, base station 110 and UE 120 may respectively be one ofthe base stations and one of the UEs in wireless network 100 of FIG. 1.Base station 110 may be equipped with T antennas 234 a through 234 t,and UE 120 may be equipped with R antennas 252 a through 252 r, where ingeneral T≥1 and R≥1.

At base station 110, a transmit processor 220 may receive data from adata source 212 for one or more UEs, select one or more modulation andcoding schemes (MCS) for each UE based on channel quality indicators(CQIs) received from the UE, process (for example, encode and modulate)the data for each UE based on the MCS(s) selected for the UE, andprovide data symbols for all UEs. The transmit processor 220 also mayprocess system information (for example, for semi-static resourcepartitioning information (SRPI), etc.) and control information (forexample, CQI requests, grants, upper layer signaling, etc.) and provideoverhead symbols and control symbols. The transmit processor 220 alsomay generate reference symbols for reference signals (for example, thecell-specific reference signal (CRS)) and synchronization signals (forexample, the primary synchronization signal (PSS) and secondarysynchronization signal (SSS)). A transmit (TX) multiple-inputmultiple-output (MIMO) processor 230 may perform spatial processing (forexample, precoding) on the data symbols, the control symbols, theoverhead symbols, or the reference symbols, if applicable, and mayprovide T output symbol streams to T modulators (MODs) 232 a through 232t. Each modulator 232 may process a respective output symbol stream (forexample, for OFDM, etc.) to obtain an output sample stream. Eachmodulator 232 may further process (for example, convert to analog,amplify, filter, and upconvert) the output sample stream to obtain adownlink signal. T downlink signals from modulators 232 a through 232 tmay be transmitted via T antennas 234 a through 234 t, respectively.According to various aspects described in more detail below, thesynchronization signals can be generated with location encoding toconvey additional information.

At UE 120, antennas 252 a through 252 r may receive the downlink signalsfrom base station 110 or other base stations and may provide receivedsignals to demodulators (DEMODs) 254 a through 254 r, respectively. Eachdemodulator 254 may condition (for example, filter, amplify,downconvert, and digitize) a received signal to obtain input samples.Each demodulator 254 may further process the input samples (for example,for OFDM, etc.) to obtain received symbols. A MIMO detector 256 mayobtain received symbols from all R demodulators 254 a through 254 r,perform MIMO detection on the received symbols if applicable, andprovide detected symbols. A receive processor 258 may process (forexample, demodulate and decode) the detected symbols, provide decodeddata for UE 120 to a data sink 260, and provide decoded controlinformation and system information to a controller or processor(controller/processor) 280. A channel processor may determine referencesignal received power (RSRP), received signal strength indicator (RSSI),reference signal received quality (RSRQ), channel quality indicator(CQI), etc. In some aspects, one or more components of UE 120 may beincluded in a housing.

On the uplink, at UE 120, a transmit processor 264 may receive andprocess data from a data source 262 and control information (forexample, for reports including RSRP, RSSI, RSRQ, CQI, etc.) fromcontroller/processor 280. Transmit processor 264 also may generatereference symbols for one or more reference signals. The symbols fromtransmit processor 264 may be precoded by a TX MIMO processor 266 ifapplicable, further processed by modulators 254 a through 254 r (forexample, for DFT-s-OFDM, CP-OFDM, etc.), and transmitted to base station110. At base station 110, the uplink signals from UE 120 and other UEsmay be received by antennas 234, processed by demodulators 232, detectedby a MIMO detector 236 if applicable, and further processed by a receiveprocessor 238 to obtain decoded data and control information sent by UE120. Receive processor 238 may provide the decoded data to a data sink239 and the decoded control information to a controller or processor(controller/processor) 240. The base station 110 may includecommunication unit 244 and communicate to network controller 130 viacommunication unit 244. The network controller 130 may includecommunication unit 294, a controller or processor (controller/processor)290, and memory 292.

In some implementations, the controller/processor 280 may be a componentof a processing system. A processing system may generally refer to asystem or series of machines or components that receives inputs andprocesses the inputs to produce a set of outputs (which may be passed toother systems or components of, for example, the UE 120). For example, aprocessing system of the UE 120 may refer to a system including thevarious other components or subcomponents of the UE 120.

The processing system of the UE 120 may interface with other componentsof the UE 120, and may process information received from othercomponents (such as inputs or signals), output information to othercomponents, etc. For example, a chip or modem of the UE 120 may includea processing system, a first interface to receive or obtain information,and a second interface to output, transmit or provide information. Insome cases, the first interface may refer to an interface between theprocessing system of the chip or modem and a receiver, such that the UE120 may receive information or signal inputs, and the information may bepassed to the processing system. In some cases, the second interface mayrefer to an interface between the processing system of the chip or modemand a transmitter, such that the UE 120 may transmit information outputfrom the chip or modem. A person having ordinary skill in the art willreadily recognize that the second interface also may obtain or receiveinformation or signal inputs, and the first interface also may output,transmit or provide information.

The controller/processor 240 of base station 110, thecontroller/processor 280 of UE 120, or any other component(s) of FIG. 2may perform one or more techniques associated with multiplexing CSIreports in multiple TRP scenarios, as described in more detail elsewhereherein. For example, the controller/processor 240 of base station 110,the controller/processor 280 of UE 120, or any other component(s) (orcombinations of components) of FIG. 2 may perform or direct operationsof, for example, process 800 of FIG. 8, or other processes as describedherein. The memories 242 and 282 may store data and program codes forbase station 110 and UE 120, respectively. A scheduler 246 may scheduleUEs for data transmission on the downlink, the uplink, or a combinationthereof.

The stored program codes, when executed by the controller/processor 280or other processors and modules at UE 120, may cause the UE 120 toperform operations described with respect to process 800 of FIG. 8, orother processes as described herein.

In some aspects, UE 120 may include means for receiving (using antenna252, DEMOD 254, MIMO detector 256, receive processor 258, orcontroller/processor 280, among other examples) at least oneconfiguration that identifies a resource for multiplexing CSI reportswith a potential to collide in a slot, means for determining (usingcontroller/processor 280 or memory 282, among other examples) thatmultiple CSI reports of a first set of CSI reports that are to betransmitted to a first TRP, or a second set of CSI reports that are tobe transmitted to a second TRP, have the potential to collide in theslot, means for transmitting (using controller/processor 280, transmitprocessor 264, TX MIMO processor 266, MOD 254, or antenna 252, amongother examples) at least one of the first set of CSI reports to thefirst TRP, or the second set of CSI reports to the second TRP, accordingto the at least one configuration, where the first set of CSI reports orthe second set of CSI reports are multiplexed in the resource, amongother examples, or combinations thereof. In some aspects, such means mayinclude one or more components of UE 120 described in connection withFIG. 2.

While blocks in FIG. 2 are illustrated as distinct components, thefunctions described above with respect to the blocks may be implementedin a single hardware, software, or combination component or in variouscombinations of components. For example, the functions described withrespect to the transmit processor 264, the receive processor 258, the TXMIMO processor 266, or another processor may be performed by or underthe control of controller/processor 280.

FIG. 3 is a block diagram conceptually illustrating an example framestructure 300 in a wireless network. In some aspects, frame structure300 may be for frequency division duplexing (FDD) in the wirelessnetwork, which may include a 5G NR wireless network or another type ofwireless network. The transmission timeline for each of the downlink anduplink may be partitioned into units of radio frames (sometimes referredto as frames). Each radio frame may have a predetermined duration (forexample, 10 milliseconds (ms)) and may be partitioned into a set of Z(Z≥1) subframes (for example, with indices of 0 through Z−1). Eachsubframe may have a predetermined duration (for example, 1 ms) and mayinclude a set of slots (for example, 2^(m) slots per subframe are shownin FIG. 3, where m is a numerology used for a transmission, such as 0,1, 2, 3, or 4, among other examples). Each slot may include a set of Lsymbol periods. For example, each slot may include fourteen symbolperiods (for example, as shown in FIG. 3), seven symbol periods, oranother number of symbol periods. In a case where the subframe includestwo slots (for example, when m=1), the subframe may include 2L symbolperiods, where the 2L symbol periods in each subframe may be assignedindices of 0 through 2L−1. In some aspects, a scheduling unit for theFDD may frame-based, subframe-based, slot-based, or symbol-based, amongother examples.

While some techniques are described herein in connection with frames,subframes, or slots, among other examples, these techniques may equallyapply to other types of wireless communication structures, which may bereferred to using terms other than “frame,” “subframe,” or “slot,” amongother examples, in 5G NR. In some aspects, a wireless communicationstructure may refer to a periodic time-bounded communication unitdefined by a wireless communication standard or protocol. Additionally,or alternatively, different configurations of wireless communicationstructures than those shown in FIG. 3 may be used.

FIG. 4 is a block diagram conceptually illustrating an example slotformat 410 with a normal cyclic prefix. The available time frequencyresources may be partitioned into resource blocks. Each resource blockmay cover a set of subcarriers (for example, 12 subcarriers) in one slotand may include a number of resource elements. Each resource element maycover one subcarrier in one symbol period (for example, in time) and maybe used to send one modulation symbol, which may be a real or complexvalue.

An interlace structure may be used for each of the downlink and uplinkfor FDD in certain telecommunications systems (for example, NR). Forexample, Q interlaces with indices of 0 through Q−1 may be defined,where Q may be equal to 4, 6, 8, 10, or some other value. Each interlacemay include slots that are spaced apart by Q frames. In particular,interlace q may include slots q, q+Q, q+2Q, etc., where q E {0, . . . ,Q−1}.

A UE may be located within the coverage of multiple BSs. One of theseBSs may be selected to serve the UE. The serving BS may be selectedbased on various criteria such as received signal strength, receivedsignal quality, or path loss, among other examples, or combinationsthereof. Received signal quality may be quantified by asignal-to-noise-and-interference ratio (SNIR), or a reference signalreceived quality (RSRQ), or some other metric. The UE may operate in adominant interference scenario in which the UE may observe highinterference from one or more interfering BSs.

While aspects of the examples described herein may be associated with NRor 5G technologies, aspects of the present disclosure may be applicablewith other wireless communication systems. New Radio (NR) may refer toradios configured to operate according to a new air interface (forexample, other than Orthogonal Frequency Divisional Multiple Access(OFDMA)-based air interfaces) or fixed transport layer (for example,other than Internet Protocol (IP)). In aspects, NR may utilize OFDM witha CP (herein referred to as cyclic prefix OFDM or CP-OFDM) or SC-FDM onthe uplink, may utilize CP-OFDM on the downlink and include support forhalf-duplex operation using time division duplexing (TDD). In aspects,NR may, for example, utilize OFDM with a CP (herein referred to asCP-OFDM) or discrete Fourier transform spread orthogonalfrequency-division multiplexing (DFT-s-OFDM) on the uplink, may utilizeCP-OFDM on the downlink and include support for half-duplex operationusing TDD. NR may include Enhanced Mobile Broadband (eMBB) servicetargeting wide bandwidth (for example, 80 megahertz (MHz) and beyond),millimeter wave (mmW) targeting high carrier frequency (for example, 60gigahertz (GHz)), massive MTC (mMTC) targeting non-backward compatibleMTC techniques, or mission critical targeting ultra-reliable low latencycommunications (URLLC) service.

In some aspects, a single component carrier bandwidth of 100 MHz may besupported. NR resource blocks may span 12 sub-carriers with asub-carrier bandwidth of 60 or 120 kilohertz (kHz) over a 0.1millisecond (ms) duration. Each radio frame may include 40 slots and mayhave a length of 10 ms. Consequently, each slot may have a length of0.25 ms. Each slot may indicate a link direction (for example, DL or UL)for data transmission and the link direction for each slot may bedynamically switched. Each slot may include DL/UL data as well as DL/ULcontrol data.

Beamforming may be supported and beam direction may be dynamicallyconfigured. MIMO transmissions with precoding also may be supported.MIMO configurations in the DL may support up to 8 transmit antennas withmulti-layer DL transmissions up to 8 streams and up to 2 streams per UE.Multi-layer transmissions with up to 2 streams per UE may be supported.Aggregation of multiple cells may be supported with up to 8 servingcells. Alternatively, NR may support a different air interface, otherthan an OFDM-based interface. NR networks may include entities such ascentral units or distributed units.

FIG. 5 illustrates an example logical architecture of a distributed RAN500. A 5G access node 506 may include an access node controller (ANC)502. The ANC may be a central unit (CU) of the distributed RAN 500. Thebackhaul interface to the next generation core network (NG-CN) 504 mayterminate at the ANC. The backhaul interface to neighboring nextgeneration access nodes (NG-ANs) may terminate at the ANC. The ANC mayinclude one or more TRPs 508 (which also may be referred to as BSs, NRBSs, Node Bs, 5G NBs, APs, gNB, or some other term). As described above,“TRP” may be used interchangeably with “cell.”

The TRPs 508 may be a distributed unit (DU). The TRPs may be connectedto one ANC (ANC 502) or more than one ANC (not illustrated). Forexample, for RAN sharing, radio as a service (RaaS), and servicespecific AND deployments, the TRP may be connected to more than one ANC.A TRP may include one or more antenna ports. The TRPs may be configuredto individually (for example, dynamic selection) or jointly (forexample, joint transmission) serve traffic to a UE.

The local architecture of RAN 500 may be used to illustrate fronthauldefinition. The architecture may be defined that support fronthaulingsolutions across different deployment types. For example, thearchitecture may be based on transmit network capabilities (for example,bandwidth, latency, jitter, etc.).

The architecture may share features or components with LTE. According toaspects, the next generation AN (NG-AN) 510 may support dualconnectivity with NR. The NG-AN may share a common fronthaul for LTE andNR.

The architecture may enable cooperation between and among TRPs 508. Forexample, cooperation may be preset within a TRP or across TRPs via theANC 502. According to aspects, no inter-TRP interface may beneeded/present.

According to aspects, a dynamic configuration of split logical functionsmay be present within the architecture of RAN 500. The packet dataconvergence protocol (PDCP), radio link control (RLC), medium accesscontrol (MAC) protocol may be adaptably placed at the ANC or TRP.

According to various aspects, a BS may include a central unit (CU) (forexample, ANC 502) or one or more distributed units (for example, one ormore TRPs 508).

FIG. 6 illustrates an example physical architecture of a distributed RAN600. A centralized core network unit (C-CU) 602 may host core networkfunctions. The C-CU may be centrally deployed. C-CU functionality may beoffloaded (for example, to advanced wireless services (AWS)), in aneffort to handle peak capacity.

A centralized RAN unit (C-RU) 604 may host one or more ANC functions.Optionally, the C-RU may host core network functions locally. The C-RUmay have distributed deployment. The C-RU may be closer to the networkedge.

A distributed unit (DU) 606 may host one or more TRPs. The DU may belocated at edges of the network with radio frequency (RF) functionality.

FIG. 7 is a diagram illustrating an example 700 of multiplexing CSIreports in multiple TRP scenarios. As shown in FIG. 7, a UE 120 maycommunicate with a first TRP 705-1 and a second TRP 705-2 in connectionwith CSI reporting. In some aspects, the first TRP 705-1 or the secondTRP 705-2 may correspond to a base station 110, as depicted anddescribed in FIG. 1, or a TRP 508, as depicted and described in FIG. 5.

As shown in FIG. 7, and by reference number 710, the UE 120 may receiveCSI reporting configurations from the first TRP 705-1 or the second TRP705-2. The CSI reporting configurations may identify one or moreresources in which the UE 120 is to transmit CSI reports. In someaspects, a resource identified by a CSI reporting configuration may beassociated with a particular TRP 705. For example, the CSI reportingconfiguration may associate the resource with an identifier (such as anindex value) that corresponds to the particular TRP 705 (in such a case,the identifier may be also associated with a CORESET associated with theparticular TRP 705). In this way, the UE 120 may identify an associationbetween one or more CSI reports scheduled by a CSI reportingconfiguration and a particular TRP 705 for which the one or more CSIreports are intended. In some aspects, a CSI reporting configuration maybe associated with an identifier (such as an index value) that enablesthe UE 120 to identify an association between one or more CSI reportsscheduled by a CSI reporting configuration and a particular TRP 705 forwhich the one or more CSI reports are intended (for example, theidentifier is also associated with a CORESET associated with theparticular TRP 705).

In addition, the UE 120 may identify a non-ideal backhaul conditionbetween the first TRP and the second TRP. For example, the UE 120 mayidentify the non-ideal backhaul condition based on CSI reportingconfigurations associating respective resources with either of the firstTRP 705-1 or the second TRP 705-2 (in such a case, a PUCCH resource mayhave a configured association with an index value that corresponds tothe first TRP 70-51 or the second TRP 705-2), based on CSI reportingconfigurations being associated with either of the first TRP 705-1 orthe second TRP 705-2 (in such a case, a CSI reporting configuration mayhave a configured association with an index value that corresponds tothe first TRP 70-51 or the second TRP 705-2), based on an explicitindication of the non-ideal backhaul condition (such as in a radioresource control configuration), or based on a configuration ofdifferent hybrid automatic repeat request (HARQ) acknowledgment reportsfor the first TRP 705-1 and the second TRP 705-2. Based on determiningthe non-ideal backhaul condition, the UE 120 may determine that CSIreports intended for the first TRP 705-1 and the second TRP 705-2 arenot to be multiplexed in the same resource.

As shown by reference number 715, the UE 120 may receive a CSImultiplexing resource configuration from the first TRP 705-1 or thesecond TRP 705-2. A CSI multiplexing resource configuration may identifyone or more resources that the UE 120 is to use for multiplexing CSIreports. For example, a CSI multiplexing resource configuration receivedfrom the first TRP 705-1 may identify one or more resources that the UE120 is to use for multiplexing CSI reports that are to be transmitted tothe first TRP 705-1.

In some aspects, the UE 120 may receive a CSI multiplexing resourceconfiguration from the first TRP 705-1, that identifies one or moreresources for multiplexing CSI reports intended for the first TRP 705-1,and may not receive a CSI multiplexing resource configuration from thesecond TRP 705-2. In some aspects, the UE 120 may receive a first CSImultiplexing resource configuration from the first TRP 705-1, thatidentifies one or more first resources for multiplexing CSI reportsintended for the first TRP, and may receive a second CSI multiplexingresource configuration from the second TRP 705-2 that identifies one ormore second resources for multiplexing CSI reports intended for thesecond TRP. In some aspects, the UE 120 may receive a single CSImultiplexing resource configuration, from either of the first TRP 705-1or the second TRP 705-2, that identifies one or more first resources formultiplexing CSI reports intended for the first TRP 705-1 and one ormore second resources for multiplexing CSI reports intended for thesecond TRP 705-2.

As shown by reference number 720, the UE 120 may identify one or morepotential collisions between CSI reports that are scheduled to betransmitted in the same slot. For example, the UE 120 may identify apotential collision based on a determination that a first CSI report isto be transmitted in a first PUCCH resource (according to a CSIreporting configuration) that overlaps with a second PUCCH resource inwhich a second CSI report is to be transmitted (according to a CSIreporting configuration). As an example, one or more CSI reportingconfigurations received by the UE 120 from the first TRP 705-1 mayschedule CSI reports for the first TRP 705-1 in the same first slot(such as in overlapping PUCCH resources). As another example, one ormore CSI reporting configurations received by the UE 120 from the secondTRP 705-2 may schedule CSI reports for the second TRP 705-2 in the samesecond slot (such as in overlapping PUCCH resources). Thus, for example,the first CSI report and the second CSI report, with the potential tocollide, may be for the first TRP 705-1 or may be for the second TRP705-2.

In such a case, the UE 120 may determine that CSI reports having thepotential to collide are to be multiplexed according to a CSImultiplexing resource configuration. In some aspects, the UE 120 maydetermine an association between the colliding CSI reports and aparticular TRP 705 (for example, based on the CSI reportingconfigurations, as described above). For example, the UE 120 maydetermine that a first set of the colliding CSI reports are associatedwith the first TRP 705-1 (such as, if PUCCH resources for the first setof colliding CSI reports are associated with an index value that is alsoassociated with a CORESET associated with the first TRP 705-1), and maydetermine that a second set of colliding CSI reports are associated withthe second TRP 705-2 (such as, if PUCCH resources for the second set ofcolliding CSI reports are associated with an index value that is alsoassociated with a CORESET associated with the second TRP 705-2).

In some aspects, the UE 120 may select, for multiplexing CSI reports, aparticular resource from a plurality of resources identified in a CSImultiplexing resource configuration. For example, the UE 120 may selectthe particular resource based on a payload size of the CSI reports thatare to be multiplexed. In some aspects, the UE 120 may select a firstresource from a plurality of resources identified in the first CSImultiplexing resource configuration received from the first TRP 705-1,and may select a second resource from a plurality of resourcesidentified in the second CSI multiplexing resource configurationreceived from the second TRP 705-2. In such a case, the first resourceand the second resource may be non-overlapping.

As shown by reference number 725, the UE 120 may transmit a first set ofCSI reports to the first TRP 705-1, and may transmit a second set of CSIreports to the second TRP 705-2. The UE 120 may transmit the first setof CSI reports and the second set of CSI reports in accordance with oneor more CSI multiplexing resource configurations received from the firstTRP 705-1 or the second TRP 705-2.

In some implementations, the UE 120 may receive a CSI multiplexingresource configuration from the first TRP 705-1, that identifies one ormore resources for multiplexing CSI reports intended for the first TRP705-1, and may not receive a CSI multiplexing resource configurationfrom the second TRP 705-2. Accordingly, the UE 120 may transmit thefirst set of CSI reports to the first TRP 705-1, multiplexed in aresource identified in the CSI multiplexing resource configuration, andmay transmit the second set of CSI reports to the second TRP withoutmultiplexing.

For example, the UE 120 may transmit the second set of CSI reports tothe second TRP 705-2 in respective resources allocated for such CSIreports in one or more CSI reporting configurations, as described above.The UE 120 may select, for inclusion in the second set of CSI reports,one or more CSI reports that are scheduled (such as by one or more CSIreporting configurations) in non-overlapping PUCCH resources. In somecases, the UE 120 may select the one or more CSI reports that arescheduled in non-overlapping resources according to one or moreprioritization criteria. In some aspects, the UE 120 may select, forinclusion in the second set of CSI reports, one or more CSI reports thatare scheduled (such as by one or more CSI reporting configurations) inPUCCH resources that do not overlap with the resource in which themultiplexed CSI reports are transmitted to the first TRP 705-1.

In some other aspects, the UE 120 may receive a first CSI multiplexingresource configuration from the first TRP 705-1 that identifies one ormore first resources for multiplexing CSI reports intended for the firstTRP 705-1, and may receive a second CSI multiplexing resourceconfiguration from the second TRP 705-2 that identifies one or moresecond resources for multiplexing CSI reports intended for the secondTRP 705-2. Alternatively, the UE 120 may receive a single CSImultiplexing resource configuration, from either of the first TRP 705-1or the second TRP 705-2, that identifies one or more first resources formultiplexing CSI reports intended for the first TRP 705-1 and one ormore second resources for multiplexing CSI reports intended for thesecond TRP 705-2.

In either scenario, the UE 120 may transmit CSI reports to the first TRP705-1 multiplexed in a first resource of the one or more firstresources, and may transmit CSI reports to the second TRP 705-2multiplexed in a second resource of the one or more second resources. Insuch cases, the UE 120 may select the first resource and the secondresource based on a payload size of the CSI reports, or based on adetermination that the first resource and the second resource arenon-overlapping. In some aspects, the UE 120 may select the firstresource for transmitting the first set of CSI reports and may selectbetween the second resource and a third resource (of the one or moresecond resources) for transmitting the second set of CSI reports basedon whether the second resource or the third resource overlaps with thefirst resource.

In some aspects, the UE 120 may determine that the first set of CSIreports that are to be transmitted in the first resource or the secondset of CSI reports that are to be transmitted in the second resourcehave a potential to collide with an uplink control information (UCI)communication or a physical uplink shared channel (PUSCH) communication.In such aspects, the UE 120 may resolve the potential collision betweenCSI reports and UCI or a PUSCH on a per-TRP 705 basis, in a mannersimilar to that described herein for resolving potential collisionsbetween CSI reports.

FIG. 8 is a diagram illustrating an example process 800 performed, forexample, by a UE. The process 800 shows where a UE, such as UE 120,performs operations associated with multiplexing CSI reports in multipleTRP scenarios.

As shown in FIG. 8, in some aspects, the process 800 may includereceiving at least one configuration that identifies a resource formultiplexing CSI reports with a potential to collide in a slot (block810). For example, the UE (using an interface of the UE, antenna 252,DEMOD 254, MIMO detector 256, receive processor 258, orcontroller/processor 280, among other examples) may receive at least oneconfiguration that identifies a resource for multiplexing CSI reportswith a potential to collide in a slot, as described above.

As shown in FIG. 8, in some aspects, the process 800 may includedetermining that multiple CSI reports of a first set of CSI reports thatare to be transmitted to a first TRP, or a second set of CSI reportsthat are to be transmitted to a second TRP, have the potential tocollide in the slot (block 820). For example, the UE (using a processingsystem of the UE or controller/processor 280, among other examples) maydetermine that multiple CSI reports of a first set of CSI reports thatare to be transmitted to a first TRP, or a second set of CSI reportsthat are to be transmitted to a second TRP, have the potential tocollide in the slot, as described above.

As shown in FIG. 8, in some aspects, the process 800 may includetransmitting at least one of the first set of CSI reports to the firstTRP or the second set of CSI reports to the second TRP according to theat least one configuration, where the first set of CSI reports or thesecond set of CSI reports are multiplexed in the resource (block 830).For example, the UE (using an interface of the UE, controller/processor280, transmit processor 264, TX MIMO processor 266, MOD 254, or antenna252, among other examples) may transmit at least one of the first set ofCSI reports to the first TRP or the second set of CSI reports to thesecond TRP according to the at least one configuration, as describedabove. In some aspects, the first set of CSI reports or the second setof CSI reports are multiplexed in the resource.

The process 800 may include additional aspects, such as any singleaspect or any combination of aspects described below or in connectionwith one or more other processes described elsewhere herein.

In a first aspect, the at least one configuration identifies a pluralityof resources, and the process 800 further includes selecting (usingcontroller/processor 280 or memory 282, among other examples) theresource for multiplexing CSI reports based on a payload size of thefirst set of CSI reports or the second set of CSI reports. In a secondaspect, alone or in combination with the first aspect, determining thatmultiple CSI reports have the potential to collide in the slot includesdetermining that a first CSI report and a second CSI report arescheduled in overlapping resources in the slot.

In a third aspect, alone or in combination with one or more of the firstand second aspects, the process 800 further includes determining (usingcontroller/processor 280 or memory 282, among other examples) a firstassociation between the first set of CSI reports and the first TRP and asecond association between the second set of CSI reports and the secondTRP. In a fourth aspect, alone or in combination with one or more of thefirst through third aspects, the first association and the secondassociation are determined based on at least one of a first otherconfiguration identifying a first resource for transmitting CSI reportsas being associated with the first TRP and a second other configurationidentifying a second resource for transmitting CSI reports as beingassociated with the second TRP, or another configuration that identifiesa first CSI reporting configuration as being associated with the firstTRP and a second CSI reporting configuration as being associated withthe second TRP.

In a fifth aspect, alone or in combination with one or more of the firstthrough fourth aspects, the process 800 further includes identifying(using controller/processor 280 or memory 282, among other examples),prior to transmitting the at least one of the first set of CSI reportsor the second set of CSI reports, a non-ideal backhaul condition betweenthe first TRP and the second TRP. In a sixth aspect, alone or incombination with one or more of the first through fifth aspects, thenon-ideal backhaul condition is identified based on at least one ofanother configuration that indicates the non-ideal backhaul condition,another configuration that identifies different hybrid automatic repeatrequest (HARQ) acknowledgment reports for the first TRP and the secondTRP, a first other configuration identifying a first resource fortransmitting CSI reports as being associated with the first TRP and asecond other configuration identifying a second resource fortransmitting CSI reports as being associated with the second TRP, oranother configuration that identifies a first CSI reportingconfiguration as being associated with the first TRP and a second CSIreporting configuration as being associated with the second TRP.

In a seventh aspect, alone or in combination with one or more of thefirst through sixth aspects, the first set of CSI reports and the secondset of CSI reports are transmitted in separate resources. In an eighthaspect, alone or in combination with one or more of the first throughseventh aspects, the second set of CSI reports is a subset ofnon-colliding CSI reports of a set of CSI reports having a plurality ofCSI reports that have the potential to collide in the slot. In a ninthaspect, alone or in combination with one or more of the first througheighth aspects, the second set of CSI reports includes one or more CSIreports that are selected according to one or more prioritizationcriteria from a set of CSI reports having a plurality of CSI reportsthat have the potential to collide in the slot. In a tenth aspect, aloneor in combination with one or more of the first through ninth aspects,the separate resources do not overlap.

In an eleventh aspect, alone or in combination with one or more of thefirst through tenth aspects, receiving the at least one configurationincludes receiving a first configuration that identifies a firstresource for multiplexing CSI reports, and receiving a secondconfiguration that identifies a second resource for multiplexing CSIreports, and the first set of CSI reports are transmitted, multiplexedin the first resource, to the first TRP, and the second set of CSIreports are transmitted, multiplexed in the second resource, to thesecond TRP. In a twelfth aspect, alone or in combination with one ormore of the first through eleventh aspects, the second configurationfurther identifies a third resource for multiplexing CSI reports, andthe process 800 further includes selecting (using controller/processor280 or memory 282, among other examples) the second resource fortransmitting the second set of CSI reports based on a determination thatthe third resource overlaps with the first resource in the slot, and thesecond resource does not overlap with the first resource in the slot.

In a thirteenth aspect, alone or in combination with one or more of thefirst through twelfth aspects, the at least one configuration is asingle configuration that identifies a first resource for multiplexingCSI reports that are to be transmitted to the first TRP and a secondresource for multiplexing CSI reports that are to be transmitted to thesecond TRP, and the first set of CSI reports are transmitted,multiplexed in the first resource, to the first TRP, and the second setof CSI reports are transmitted, multiplexed in the second resource, tothe second TRP.

Although FIG. 8 shows example blocks of the process 800, in someaspects, the process 800 may include additional blocks, fewer blocks,different blocks, or differently arranged blocks than those depicted inFIG. 8. Additionally, or alternatively, two or more of the blocks of theprocess 800 may be performed in parallel.

The foregoing disclosure provides illustration and description, but isnot intended to be exhaustive or to limit the aspects to the preciseform disclosed. Modifications and variations may be made in light of theabove disclosure or may be acquired from practice of the aspects.

As used herein, the term “component” is intended to be broadly construedas hardware, firmware, or a combination of hardware and software. Asused herein, a processor is implemented in hardware, firmware, or acombination of hardware and software. As used herein, the phrase “basedon” is intended to be broadly construed to mean “based at least in parton.”

Some aspects are described herein in connection with thresholds. As usedherein, satisfying a threshold may refer to a value being greater thanthe threshold, greater than or equal to the threshold, less than thethreshold, less than or equal to the threshold, equal to the threshold,or not equal to the threshold.

As used herein, a phrase referring to “at least one of” a list of itemsrefers to any combination of those items, including single members. Asan example, “at least one of: a, b, or c” is intended to cover: a, b, c,a-b, a-c, b-c, and a-b-c.

The various illustrative logics, logical blocks, modules, circuits andalgorithm processes described in connection with the aspects disclosedherein may be implemented as electronic hardware, computer software, orcombinations of both. The interchangeability of hardware and softwarehas been described generally, in terms of functionality, and illustratedin the various illustrative components, blocks, modules, circuits andprocesses described above. Whether such functionality is implemented inhardware or software depends upon the particular application and designconstraints imposed on the overall system.

The hardware and data processing apparatus used to implement the variousillustrative logics, logical blocks, modules and circuits described inconnection with the aspects disclosed herein may be implemented orperformed with a general purpose single- or multi-chip processor, adigital signal processor (DSP), an application specific integratedcircuit (ASIC), a field programmable gate array (FPGA) or otherprogrammable logic device, discrete gate or transistor logic, discretehardware components, or any combination thereof designed to perform thefunctions described herein. A general purpose processor may be amicroprocessor, or any conventional processor, controller,microcontroller, or state machine. A processor also may be implementedas a combination of computing devices, for example, a combination of aDSP and a microprocessor, a plurality of microprocessors, one or moremicroprocessors in conjunction with a DSP core, or any other suchconfiguration. In some aspects, particular processes and methods may beperformed by circuitry that is specific to a given function.

In one or more aspects, the functions described may be implemented inhardware, digital electronic circuitry, computer software, firmware,including the structures disclosed in this specification and theirstructural equivalents thereof, or in any combination thereof. Aspectsof the subject matter described in this specification also can beimplemented as one or more computer programs, that is, one or moremodules of computer program instructions, encoded on a computer storagemedia for execution by, or to control the operation of, data processingapparatus.

If implemented in software, the functions may be stored on ortransmitted over as one or more instructions or code on acomputer-readable medium. The processes of a method or algorithmdisclosed herein may be implemented in a processor-executable softwaremodule which may reside on a computer-readable medium. Computer-readablemedia includes both computer storage media and communication mediaincluding any medium that can be enabled to transfer a computer programfrom one place to another. A storage media may be any available mediathat may be accessed by a computer. By way of example, and notlimitation, such computer-readable media may include RAM, ROM, EEPROM,CD-ROM or other optical disk storage, magnetic disk storage or othermagnetic storage devices, or any other medium that may be used to storedesired program code in the form of instructions or data structures andthat may be accessed by a computer. Also, any connection can be properlytermed a computer-readable medium. Disk and disc, as used herein,includes compact disc (CD), laser disc, optical disc, digital versatiledisc (DVD), floppy disk, and Blu-ray disc where disks usually reproducedata magnetically, while discs reproduce data optically with lasers.Combinations of the above should also be included within the scope ofcomputer-readable media. Additionally, the operations of a method oralgorithm may reside as one or any combination or set of codes andinstructions on a machine readable medium and computer-readable medium,which may be incorporated into a computer program product.

Various modifications to the aspects described in this disclosure may bereadily apparent to those skilled in the art, and the generic principlesdefined herein may be applied to other aspects without departing fromthe spirit or scope of this disclosure. Thus, the claims are notintended to be limited to the aspects shown herein, but are to beaccorded the widest scope consistent with this disclosure, theprinciples and the novel features disclosed herein.

Additionally, a person having ordinary skill in the art will readilyappreciate, the terms “upper” and “lower” are sometimes used for ease ofdescribing the figures, and indicate relative positions corresponding tothe orientation of the figure on a properly oriented page, and may notreflect the proper orientation of any device as implemented.

Certain features that are described in this specification in the contextof separate aspects also can be implemented in combination in a singleaspect. Conversely, various features that are described in the contextof a single aspect also can be implemented in multiple aspectsseparately or in any suitable subcombination. Moreover, althoughfeatures may be described above as acting in certain combinations andeven initially claimed as such, one or more features from a claimedcombination can in some cases be excised from the combination, and theclaimed combination may be directed to a subcombination or variation ofa subcombination.

Similarly, while operations are depicted in the drawings in a particularorder, this should not be understood as requiring that such operationsbe performed in the particular order shown or in sequential order, orthat all illustrated operations be performed, to achieve desirableresults. Further, the drawings may schematically depict one more exampleprocesses in the form of a flow diagram. However, other operations thatare not depicted can be incorporated in the example processes that areschematically illustrated. For example, one or more additionaloperations can be performed before, after, simultaneously, or betweenany of the illustrated operations. In certain circumstances,multitasking and parallel processing may be advantageous. Moreover, theseparation of various system components in the aspects described aboveshould not be understood as requiring such separation in all aspects,and it should be understood that the described program components andsystems can generally be integrated together in a single softwareproduct or packaged into multiple software products. Additionally, otheraspects are within the scope of the following claims. In some cases, theactions recited in the claims can be performed in a different order andstill achieve desirable results.

1. A method of wireless communication performed by an apparatus of auser equipment (UE), comprising: receiving an indication of a non-idealbackhaul condition between a first transmit-receive point (TRP) and asecond TRP; receiving at least one configuration that identifies aresource for multiplexing channel state information (CSI) reports with apotential to collide in a slot; determining that multiple CSI reports ofa first set of CSI reports that are to be transmitted to the first TRP,or of a second set of CSI reports that are to be transmitted to thesecond TRP, have the potential to collide in the slot; and transmittingat least one of the first set of CSI reports to the first TRP or thesecond set of CSI reports to the second TRP according to the at leastone configuration, wherein the first set of CSI reports or the secondset of CSI reports are multiplexed in the resource.
 2. The method ofclaim 1, wherein the at least one configuration identifies a pluralityof resources, and wherein the method further comprises selecting theresource for multiplexing CSI reports based on a payload size of thefirst set of CSI reports or the second set of CSI reports.
 3. The methodof claim 1, wherein determining that multiple CSI reports have thepotential to collide in the slot comprises determining that a first CSIreport and a second CSI report are scheduled in overlapping resources inthe slot.
 4. The method of claim 1, further comprising determining afirst association between the first set of CSI reports and the first TRPand a second association between the second set of CSI reports and thesecond TRP.
 5. The method of claim 4, wherein the first association andthe second association are determined based on at least one of: a firstother configuration identifying a first resource for transmitting CSIreports as being associated with the first TRP and a second otherconfiguration identifying a second resource for transmitting CSI reportsas being associated with the second TRP; or another configuration thatidentifies a first CSI reporting configuration as being associated withthe first TRP and a second CSI reporting configuration as beingassociated with the second TRP.
 6. The method of claim 1, wherein theindication of the non-ideal backhaul condition is received prior totransmitting the at least one of the first set of CSI reports or thesecond set of CSI reports.
 7. The method of claim 1, wherein thenon-ideal backhaul condition is indicated based on at least one of:another configuration that indicates the non-ideal backhaul condition;another configuration that identifies different hybrid automatic repeatrequest (HARD) acknowledgment reports for the first TRP and the secondTRP; a first other configuration identifying a first resource fortransmitting CSI reports as being associated with the first TRP and asecond other configuration identifying a second resource fortransmitting CSI reports as being associated with the second TRP; oranother configuration that identifies a first CSI reportingconfiguration as being associated with the first TRP and a second CSIreporting configuration as being associated with the second TRP.
 8. Themethod of claim 1, wherein the first set of CSI reports and the secondset of CSI reports are transmitted in separate resources.
 9. The methodof claim 8, wherein the second set of CSI reports is a subset ofnon-colliding CSI reports of a set of CSI reports having a plurality ofCSI reports that have the potential to collide in the slot.
 10. Themethod of claim 8, wherein the second set of CSI reports includes one ormore CSI reports that are selected according to one or moreprioritization criteria from a set of CSI reports having a plurality ofCSI reports that have the potential to collide in the slot.
 11. Themethod of claim 8, wherein the separate resources do not overlap. 12.The method of claim 1, wherein receiving the at least one configurationincludes receiving a first configuration that identifies a firstresource for multiplexing CSI reports, and receiving a secondconfiguration that identifies a second resource for multiplexing CSIreports, and wherein the first set of CSI reports are transmitted,multiplexed in the first resource, to the first TRP, and the second setof CSI reports are transmitted, multiplexed in the second resource, tothe second TRP.
 13. The method of claim 12, wherein the secondconfiguration further identifies a third resource for multiplexing CSIreports, and wherein the method further comprises selecting the secondresource for transmitting the second set of CSI reports based on adetermination that the third resource overlaps with the first resourcein the slot, and the second resource does not overlap with the firstresource in the slot.
 14. The method of claim 1, wherein the at leastone configuration is a single configuration that identifies a firstresource for multiplexing CSI reports that are to be transmitted to thefirst TRP and a second resource for multiplexing CSI reports that are tobe transmitted to the second TRP, and wherein the first set of CSIreports are transmitted, multiplexed in the first resource, to the firstTRP, and the second set of CSI reports are transmitted, multiplexed inthe second resource, to the second TRP.
 15. An apparatus of a userequipment (UE) for wireless communication, comprising: a first interfaceconfigured to: obtain an indication of a non-ideal backhaul conditionbetween a first transmit-receive point (TRP) and a second TRP, andobtain at least one configuration that identifies a resource formultiplexing channel state information (CSI) reports with a potential tocollide in a slot; a processing system configured to determine thatmultiple CSI reports of a first set of CSI reports that are to betransmitted to the first TRP, or of a second set of CSI reports that areto be transmitted to the second TRP, have the potential to collide inthe slot; and a second interface configured to output at least one ofthe first set of CSI reports for the first TRP or the second set of CSIreports for the second TRP according to the at least one configuration,wherein the first set of CSI reports or the second set of CSI reportsare multiplexed in the resource.
 16. The apparatus of claim 15, whereinthe at least one configuration identifies a plurality of resources, andwherein the processing system is further configured to select theresource for multiplexing CSI reports based on a payload size of thefirst set of CSI reports or the second set of CSI reports.
 17. Theapparatus of claim 15, wherein the processing system, when determiningthat multiple CSI reports have the potential to collide in the slot, isconfigured to determine that a first CSI report and a second CSI reportare scheduled in overlapping resources in the slot.
 18. The apparatus ofclaim 15, wherein the processing system is further configured todetermine a first association between the first set of CSI reports andthe first TRP and a second association between the second set of CSIreports and the second TRP.
 19. The apparatus of claim 18, wherein thefirst association and the second association are determined based on atleast one of: a first other configuration identifying a first resourcefor transmitting CSI reports as being associated with the first TRP anda second other configuration identifying a second resource fortransmitting CSI reports as being associated with the second TRP; oranother configuration that identifies a first CSI reportingconfiguration as being associated with the first TRP and a second CSIreporting configuration as being associated with the second TRP.
 20. Theapparatus of claim 15, wherein the indication of the non-ideal backhaulcondition is received prior to outputting the at least one of the firstset of CSI reports or the second set of CSI reports.
 21. The apparatusof claim 15, wherein the non-ideal backhaul condition is indicated basedon at least one of: another configuration that indicates the non-idealbackhaul condition; another configuration that identifies differenthybrid automatic repeat request (HARD) acknowledgment reports for thefirst TRP and the second TRP; a first other configuration identifying afirst resource for transmitting CSI reports as being associated with thefirst TRP and a second other configuration identifying a second resourcefor transmitting CSI reports as being associated with the second TRP; oranother configuration that identifies a first CSI reportingconfiguration as being associated with the first TRP and a second CSIreporting configuration as being associated with the second TRP.
 22. Theapparatus of claim 15, wherein the first set of CSI reports and thesecond set of CSI reports are outputted in separate resources.
 23. Theapparatus of claim 22, wherein the second set of CSI reports is a subsetof non-colliding CSI reports of a set of CSI reports having a pluralityof CSI reports that have the potential to collide in the slot.
 24. Theapparatus of claim 22, wherein the second set of CSI reports includesone or more CSI reports that are selected according to one or moreprioritization criteria from a set of CSI reports having a plurality ofCSI reports that have the potential to collide in the slot.
 25. Theapparatus of claim 22, wherein the separate resources do not overlap.26. The apparatus of claim 22, wherein the processing system, whenobtaining the at least one configuration, is configured to obtain afirst configuration that identifies a first resource for multiplexingCSI reports, and obtain a second configuration that identifies a secondresource for multiplexing CSI reports, and wherein the first set of CSIreports are outputted, multiplexed in the first resource, for the firstTRP, and the second set of CSI reports are outputted, multiplexed in thesecond resource, for the second TRP.
 27. (canceled)
 28. The apparatus ofclaim 15, wherein the at least one configuration is a singleconfiguration that identifies a first resource for multiplexing CSIreports that are to be transmitted to the first TRP and a secondresource for multiplexing CSI reports that are to be transmitted to thesecond TRP, and wherein the first set of CSI reports are outputted,multiplexed in the first resource, for the first TRP, and the second setof CSI reports are outputted, multiplexed in the second resource, forthe second TRP.
 29. A non-transitory computer-readable medium storing aset of instructions for wireless communication, the set of instructionscomprising: one or more instructions that, when executed by one or moreprocessors of a user equipment (UE), cause the UE to: receive anindication of a non-ideal backhaul condition between a firsttransmit-receive point (TRP) and a second TRP; receive at least oneconfiguration that identifies a resource for multiplexing channel stateinformation (CSI) reports with a potential to collide in a slot;determine that multiple CSI reports of a first set of CSI reports thatare to be transmitted to the first TRP, or of a second set of CSIreports that are to be transmitted to the second TRP, have the potentialto collide in the slot; and transmit at least one of the first set ofCSI reports to the first TRP or the second set of CSI reports to thesecond TRP according to the at least one configuration, wherein thefirst set of CSI reports or the second set of CSI reports aremultiplexed in the resource. 30-42. (canceled)
 43. An apparatus forwireless communication, comprising: means for receiving an indication ofa non-ideal backhaul condition between a first transmit-receive point(TRP) and a second TRP; means for receiving at least one configurationthat identifies a resource for multiplexing channel state information(CSI) reports with a potential to collide in a slot; means fordetermining that multiple CSI reports of a first set of CSI reports thatare to be transmitted to the first TRP, or of a second set of CSIreports that are to be transmitted to the second TRP, have the potentialto collide in the slot; and means for transmitting at least one of thefirst set of CSI reports to the first TRP or the second set of CSIreports to the second TRP according to the at least one configuration,wherein the first set of CSI reports or the second set of CSI reportsare multiplexed in the resource. 44-56. (canceled)
 57. The method ofclaim 1, wherein the first TRP corresponds to a first index value for afirst respective control resource set (CORESET), and wherein the secondTRP corresponds to a second index value for a second CORESET.